| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh adv] it [verb] | 3527 |
|
| 2 | it could [verb] | 2659 |
|
| 3 | [Wh adv] it could | 152 |
|
| 4 | [Wh adv] could [verb] | 9 |
|
